Bayu Septiawan, Akbar, N. R. and Habibi, F. N. (2025) “Design and Development of a Free-Fall Experiment Apparatus Based on a Photodiode Sensor”, Indonesian Journal of Educational Innovation, 1(2), pp. 31–36. Available at: https://journals.widhatulfaeha.id/index.php/jpkjl/article/view/60 (Accessed: 13 January 2026).